Home / 7,089.73-10,620.75-5,212.15

Finding the Fourth Proportional to 7,089.73, 10,620.75 and 5,212.15

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Solution

The fourth proportional to 7,089.73, 10,620.75 and 5,212.15 is: 7,808.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,089.73 : 10,620.75 = 5,212.15 : x
  2. Step 2: Convert to fraction form
    7,089.73/10,620.75 = 5,212.15/x
  3. Step 3: Cross multiply
    7,089.73x = 10,620.75 × 5,212.15
  4. Step 4: Simplify right side
    7,089.73x = 55,356,942.11
  5. Step 5: Solve for x
    x = 55,356,942.11/7,089.73
  6. Step 6: Final answer
    x = 7,808.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.